Reading serial port status lines was broken on the FT232RL since when ithas been detected as a separate chip (2.6.22+). Previously, it would workbecause it was just handled as an FT232BM.

Additionally, we were also forgetting to remove the dev_attr_latency_timersysfs file in the FT232RL case.

Note by Bernardo Innocenti: the ftdi_sio maintainer appears to have steppeddown, so I'm sending this to Greg Kroah-Hartman as the generic USB serialmaintainer. Please, let me know if this is not appropriate.